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mestny [16]
2 years ago
11

I am struggling could someone please help me.

Mathematics
1 answer:
ryzh [129]2 years ago
6 0

Answer:

- 30 cud be the answer for the question, I'm not really sure

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TEXASCHIC! :)
nlexa [21]
(3,51)(5,59)
slope = (59 - 51) / (5 - 3) = 8/2 = 4

y = mx + b
slope(m) = 4
(3,51)...x = 3 and y = 51
sub and find b, the y int
51 = 4(3) + b
51 = 12 + b
51 - 12 = b
39 = b

so ur equation is : y = 4x + 39...but u need it in standard form

y = 4x + 39
-4x + y = 39
4x - y = -39 <==== this is ur equation...x = number of hrs and y = total velocity
====================
ur x axis is the number of hrs
ur y axis is total velocity in km

y = 4x + 39......slope = 4.....y int = (0,39)....x int is (- 9.75,0) or -9 3/4 for graphing purposes)....so start at (-9.75,0)...and since the slope is 4, go up 4 and to the right 1....plot that...then up 4 and to the right 1...plot that...u will cross the y axis at (0,39)....and just connect ur plotted points and u have ur line......or what u can do since it is asking for the first 6 hrs....sub in 1 for x and solve for y....then sub in 2 for x and solve for y...keep doing this up till 6 and u will have ur line up till 6 hrs
8 0
3 years ago
How do you evaluate sin(13π/12)?
Alekssandra [29.7K]

13pi/12 lies between pi and 2pi, which means sin(13pi/12) < 0

Recall the double angle identity,

sin^2(x) = (1 - cos(2x))/2

If we let x = 13pi/12, then

sin(13pi/12) = - sqrt[(1 - cos(13pi/6))/2]

where we took the negative square root because we expect a negative value.

Now, because cosine has a period of 2pi, we have

cos(13pi/6) = cos(2pi + pi/6) = cos(pi/6) = sqrt[3]/2

Then

sin(13pi/12) = - sqrt[(1 - sqrt[3]/2)/2]

sin(13pi/12) = - sqrt[2 - sqrt[3]]/2

7 0
3 years ago
Which one is correct please hurry
nikklg [1K]

Answer:

g

Step-by-step explanation:

it is g because you have to acally read that question

4 0
3 years ago
5 + 7 x 7 + 8<br> ( f233 p01n75)<br> (1k 7h1s b7w)
mixer [17]
62


Mark brainliest please


Hope this helps you
4 0
3 years ago
Read 2 more answers
Help me please ://///
Hunter-Best [27]

Answer:

116

Step-by-step explanation:

82 brownies sold for $1 each is $82 in total

140-82=58

each cookie is sold at $0.5 so we need to multiply the rest of the cash by 2

58×2=116

so he needs to sell 116 more cookies to reach his goal

7 0
3 years ago
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